[mrmurr2003]

I just finished recapping my Farnsworth AC-70. I am getting a very slight hum still when I turn it on, nothing compared to it's original level, and I was wondering if there were other sources that could create it (tube?). There is very little on the internet though what I did find indicated that some radios just did hum even when new. I am also considering I might be too picky?  Any feedback would be great!